I could wire everything but I am confused with additional wires and Heat is not coming on. The old thermostat has Em Heat switch but the new thermostat does not have something like that. The thermostat is working in Cool mode meaning the outside condenser fan is working and the inside blower fan works. Auto/Fan is working as desired, that is the inside blower fan rotates when switched to Fan Mode. Here are the details,

The manual says, "Wiring for Heat Pumps with Auxiliary or backup heat only"

1. Leave the metal jumper between R & Rc.
2. If your old thermostat had separate O and B wires, wrap B wire in electrical tape and do not connect.
3. If your old thermostat had Y1, W1 and W2 wires, stop now and contact a qualified technician for help.
4. Do not use C or X wire. Do not use B wire if you already have O wire.
5. If your old thermostat had E and Aux wires, connect both wires to Aux terminal.